Air from the ice and firn (compressed snow) of the Antarctic ice sheet will be extracted and measured for atmospheric composition in the past. Gases of interest are greenhouse gases (carbon dioxide, ...

Metadata record for data from AAS (ASAC) project 3025.
Public
An ice core drilling expedition is proposed for Aurora Basin, between Law Dome and Dome C. This will provide a climate record in excess ...

This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Brimstone Peak (75.888S 158.55E) in East Antarctica. Tephra samples were collected ...

This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected ...

This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...

This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...

This data set consists of electron microprobe geochemical analyses of glass shards sampled from Siple Dome and Taylor Dome ice cores during the 1999-2000 field season. Geochemical data are in tab-delimited ...

This data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...

This data set contains concentrations of soluble chemical species (ions) within a 120 m ice core retrieved at the South Pole station in 2001. The ice core was dated with annual resolution using annual ...

This data set compares global atmospheric concentration of methane from ice cores taken on the ice sheets of Antarctica and Greenland. The data come from multiple ice cores on each continent, including ...

This data set consists of deuterioum isotope data obtained from Talos Dome ice core. Talos Dome is located on the edge of the East Antarctic plateau adjacent to the Victoria Land mountain. The Talos ...

This data set consists of sodium (Na) and magnesium (Mg) concentrations versus depth in seven ice cores that were obtained by the Norwegian-U.S. Scientific Traverse of East Antarctica during the International ...

Sub-annually resolved ice core chemistry data from various sites on the Antarctic Ice Sheet were obtained from 1999 to 2008 during the US International Trans-Antarctic Scientific Expedition (US ITASE) ...

This data set contains boundaries and tags for major geologic units in the
conterminous United States. In addition to the polygons representing the areal
extent of geologic units, it identifies boundaries ...

This award supports a project to make high-resolution logs of dust and ash in the Dome C borehole using an optical dust logger. The dust logger employs a temperature-regulated diode laser at 404 nm ...

Analysis of material preserved in glaciers and ice-sheets can provide a window into the climatological and environmental history of our planet. Current analytical methodology involves sectioning of ...

To date there is a lack of knowledge of the composition of the past African atmosphere, especially at high elevations. As aerosols play an important role in the climate system, the assessment of their ...

The dataset is comprised of optical images of ice core sections that were acquired with a digital line-scan camera in the cold room facility at the U.S. National Ice Core Laboratory (NICL). Ice core ...

The dataset is comprised of optical images of ice core sections that were acquired with a digital line-scan camera in the cold room facility at the U.S. National Ice Core Laboratory (NICL). Ice core ...

Samples were reanalyzed from the Vostok ice core for the O2/N2/Ar ratio, and
the isotopic composition of O2 and N2, at approximately 1 kyr resolution
between 110 -400 ka. This work defined the d18O ...

Ice cores that were recovered from the summit of Sajama mountain in
Bolivia provide carbon-14-dated tropical records and extend to the
Late Glacial Stage (LGS). Oxygen isotopic ratios of the ice decreased ...

Recent reconstructions of northern hemisphere temperatures and climate
forcing over the last 1000 years allow the warming of the 20th century
to be placed within a historical context and various mechanisms ...

Laser Light Scattering (LLS) from meltwater was used to obtain dust
concentrations along the top 120 m of the GISP2 B core. In this technique, the
intensity of light scattered at 90 degrees from the ...

Explosive volcanic eruptions are very violent events, each with
clearly individual characteristics. Instead of looking at specific eruptions,
we focus here on the long term record of tropical explosive ...

This dataset contains concentrations of soluble chemical species (ions) in
samples of an 120-m ice core retrieved at the South Pole station in 2001. The
ice core was dated with annual resolution using ...